Lavant Horticultural Society, Chichester

Lavant Horticultuiral Society
Pink flower of Echinacea purpurea

A short selection of things to do in the garden this month, with links to more comprehensive advice.

July (to look back to June, click on the rose to the right).

Ensure newly planted trees and shrubs do not dry out; they often need much more water than people think.

With the warmth of summer and a shower of rain, many plants will be putting on rapid growth - none more so than the weeds! Mulching borders can save a lot of work by keeping the weeds down, whilst helping retain moisture,  A really thick layer of mulch (5-7.5cm/2-3in all over) works best.

Echinacea purpurea

'PowWow Wild Berry'

Thickened and curled margins on bay trees (Laurus nobilis) are a sign of damage by the bay sucker. Scale insects can also affect bays at this time of year.

Cut back delphiniums and hardy geraniums after the first flush of flowers to encourage a second flowering later in the season. Feed and mulch after cutting them back.

Prune June-flowering shrubs such as Philadelphus and Weigela when they have finished flowering; not only to keep them trim, but to ensure the new growth has time to develop to bear next year's flowers.

Now is the time to prune deciduous, spring-flowering magnolias to keep bleeding to a minimum. However, only prune them if really necessary - otherwise, it is best to leave them alone.

On hot days damping down the greenhouse floor helps reduce the temperature and increases humidity, encouraging plant growth and mitigating against red spider mite.

Cutting back plants in baskets followed by feeding can encourage new growth & help revive tired displays.

Divide clumps of bearded iris, if you did not do it immediately after flowering last month - it is advisable to do this every third year, to reinvigorate the plants, as well as increasing their number.

In dry weather, powdery mildew can pose a threat to susceptible plants, such as clematis, honeysuckle, Centaurea, Monarda, scabious and Knautia; however, regular watering can help keep it at bay.

Many indoor plants benefit from being placed outside on the patio for the summer. Moving many plants out of the conservatory will save them from baking under glass, and reduce the threat from some pests and diseases that thrive in hot dry conditions, such as red spider mites and scale insects.

Click above to look back to


Click below for more comprehensive RHS

advice for this month

Wildlife in the garden


Click on the nightingale

to listen to Birdsong


from the RSPB

You probably won't have to look too far for these

Oxalis corniculata

click on the picture for more details


click on the picture for more details